Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323841 | Annular metal casting unit | Frank E. Wagstaff, Robert Bruce Wagstaff, Richard J. Collins | 1994-06-28 |
| 5318098 | Metal casting unit | Robert Bruce Wagstaff, Frank E. Wagstaff, Richard J. Collins | 1994-06-07 |